INDC(IND)-35G - IAEA Nuclear Data Services

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- 51 - $• S. Ganesan, M.H. Rananadhan, V. Gopalakrlahnan and U.S. Keahavauurthy, Papar presented at 3rd IAEA Adrisoxy Group Maeting on Transactinium nudaar Data, May 21-24 Uppsala, Swedan. 6. M.K. Mehta and H.M. Jain; IAEA TECDOC-232 p.287(l980)| H.M, Jain and M.K. Mehta, p.657 in Nuclaar Data for Sol«nca and Technology, Proc. Antwerp Conference, D. Reidel Publishing Company (1983)*
- 52 - Participation in IAEA Code Verification Project (S.Ganesan and M.M.Ramanadhan) On a suggestion from IAEA Nuclear Data Section, we started participating in IAEA Code Verification Project . This project attempts to assure that for a given input or evaluated data and physical assumptions the output of cross section processor is accurate* Ibis project does not deal with errors in the evaluated data or the modelling accuracies of the transport or diffusion approximations of the physical problem. The objectives are therefore limited to the followingt 1. To examine the behaviour and test the accuracy of processing programs* 2. To eliminate, through identification of weak points, the error producing options and sources (of discrepancies) in the processor* Once these two objectives are satisfi' ., it is possible to have the generation of multigroup constants ithout introducing significant errors in processing, within reasonable computing time using correct models for processing* Using the latest so called 'mod. 1 library' (referred to at Vienna as EN5-D2-p ENDF/B-V dosimetry library) we generated flat weighted zero kelvin unshielded cross sections using SAND II 620 group structure. The codes LINEAR-RECENT- GROUPIE 3 were utilised. A comparison of our results were made at IAEA, with the benchmark standard results. Differences were noticed for very small values close to threshold and the reason was traced to a procedure built into LINEAR to handle the case of positive and negative background cross sections in the resonance region which should not have been applied near thresholds. The v&rsions of LINEAR used does not further subdivide the interval if the
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B.A.R.C.-1239 q as GOVERNMENT OF IN
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1NIS Subject Cantenoryt A3*00 Descr
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PREFACE -i- CONTENTS I. HUCLEAR PIS
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-lii- II.8. Generation of Doppler b
Page 9 and 10: - 1 — I. NUCLEAR FISSION MASS. EN
Page 11 and 12: -• 3 -" ANo'ULAR DISTRIBUTION OF
Page 13 and 14: - 5 - Cumulative yields cf rare-ear
Page 15 and 16: • 7 " laotoplc yield attribution
Page 17 and 18: - 9 _ Effeot of excitation energy o
Page 19 and 20: - 11 - Studies on fragaent angular
Page 21 and 22: - 13 - Stadias on fragment angular
Page 23 and 24: - 15 - Cumulative yielda of short-l
Page 25 and 26: - 17 - TABIE 1 Fission Products Yie
Page 27 and 28: HEUTRON CAPTURE CROSS -SECTION OF 2
Page 29 and 30: and extracted the value of E for ev
Page 31 and 32: - 23 - MDMIOROUP PHOTON INTERACTION
Page 33 and 34: - 25 - iBAHC35-A35 GROUP CROSS-SECT
Page 35 and 36: - 27 - 1. D.B. Cullen, SUMMIT of Pr
Page 37 and 38: - 29 - Generation of Activation Cro
Page 39 and 40: -31- (2) The emission of the first
Page 41 and 42: -33- iB level density parameter giv
Page 43 and 44: -34 A- References 1. M.L. Jhingan,
Page 45 and 46: - 36 - two multigroup Infinite dilu
Page 47 and 48: - 38 - Multigroup Constanta for Gal
Page 49 and 50: - 40 - The Program 'REX1 for Accura
Page 51 and 52: - 42 - The self shielding factor la
Page 53 and 54: - 44 - energy region particularly 3
Page 55 and 56: - 46 - COMPLOT : A Prorrain for Com
Page 57 and 58: Analysis of ZPR-9 Assembly 31. the
Page 59: - 50 - A Programme of Evaluation. P
Page 63 and 64: - 54 - Generation of Broad Group Er
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INDC(IND)-35G - IAEA Nuclear Data Services

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